Change Order Builder | AI Service Co

1. Project and parties

Contractor business name Contractor contact line Customer name Project address

Original contract or estimate reference

Original contract date

Change order number

Change order date

Currency

Price valid for (days)

2. What is changing and why

Description of the change

Reason

Work status

Schedule impact (working days, + or −)

New estimated completion

Terms shown on the document

3. Cost breakdown

Enter each item once. Use a negative unit cost for a credit or deduction. Amounts are calculated in whole cents.

Description	Qty	Unit	Unit cost	Line total

Markup / overhead %

Tax %

Original contract sum

Previously approved changes (net)

4. Review and approve

Generate to preview the change order here.

Resume from a downloaded JSON file:

Nothing is sent or stored automatically. Print the approved copy for your records.

Why a written change order protects both sides

It records the scope change, the reason and the price before the extra work starts, so neither side relies on memory.
It shows the new contract sum and completion date in one place, which prevents the end-of-job dispute over "what was included".
It gives the customer a clear decision: approve, negotiate or decline, with a price that is valid for a stated period.

Before work proceeds

Customer has signed and dated the printed or saved copy.
Any permit or inspection implication is stated in the description.
The schedule impact and new completion date are realistic.
Both parties keep a copy; the contractor files it with the original contract.

This tool is a document helper, not legal advice. Contract requirements vary by location and trade; check your local rules or ask a professional for anything unusual.

Premium options (planned, not on sale)

PROPOSED

Branded Change-Order Pack

$10 once

Logo and brand colours, several layouts, cover note and bilingual variants. Not available to purchase yet.

PROPOSED

Approval Workflow

$19/month

Send-for-approval links, e-signature, approval log and reminders. Not available or billable yet.

Independent business tool. No accounts, uploads, tracking or automatic sending. Not legal advice. AI Service Co